IBA on functional polymers
- Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands)
The analysis of element distributions in polymer-based structures using IBA techniques offers the possibility to study a variety of interesting problems, in particular diffusion and reaction phenomena. Indium diffusion in model polymer light emitting diodes (p-LEDs) consisting of a stack Al/poly-(phenylenevinylene)/indium-tin-oxide/glass has been studied with Rutherford backscattering spectrometry (RBS), particle induced X-ray emission (PIXE), X-ray photoelectron spectroscopy (XPS), and low energy ion scattering (LEIS). A second example is provided by the analysis of organic optical gratings, in which the diffusion of labeled monomers during holographic photo-polymerization of photo-reactive monomer mixtures has been studied with {mu}PIXE using a scanning proton microprobe. Since polymers are sensitive to ion irradiation, a new RBS/ERDA set-up has been constructed that is equipped with a sample holder mounted on a closed cycle helium refrigerator, which enables the cooling of samples to cryogenic temperatures to suppress damage under ion bombardment.
- OSTI ID:
- 21207981
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 475; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
DIFFUSION
HOLOGRAPHY
INDIUM
ION BEAMS
ION MICROPROBE ANALYSIS
LIGHT EMITTING DIODES
MIXTURES
MULTI-ELEMENT ANALYSIS
ORGANIC POLYMERS
PIXE ANALYSIS
POLYMERIZATION
QUANTITATIVE CHEMICAL ANALYSIS
RUTHERFORD BACKSCATTERING SPECTROSCOPY
THIN FILMS
TIN OXIDES
X-RAY PHOTOELECTRON SPECTROSCOPY